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GeezerVison is showing github.com — separate `AlphaFeature` for `PositionsGraphic` subclasses? · Issue #754 · fastplotlib/fastplotlib

separate AlphaFeature for PositionsGraphic subclasses? #754

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separate AlphaFeature for PositionsGraphic subclasses?#754
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kushalkolar

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@kushalkolar
kushalkolar
opened on Mar 11, 2025
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I often want to change a cmap or colors on a line or scatter without changing the alpha. We could make alpha an independent feature.

We can make this per-vertex (if not using a uniform buffer) or for the entire graphic.

@clewis7 what do you think?

Reacted by Almar Klein

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  1. clewis7 commented on Mar 11, 2025

    @clewis7
    clewis7
    on Mar 11, 2025
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    It is annoying sometimes to be trying to change the colors (especially when I am sampling a random color) to then have to append the alpha to the end lol

  2. clewis7 commented on Mar 11, 2025

    @clewis7
    clewis7
    on Mar 11, 2025
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    Other option is to be more flexible in the argument we allow for setting colors, and if the dim is 3 instead of 4 to assume they want the alpha to remain the same

  3. kushalkolar
    self-assigned this
    on Mar 12, 2025

  4. kushalkolar commented on Sep 27, 2025

    @kushalkolar
    kushalkolar
    on Sep 27, 2025
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    done in #873

  5. kushalkolar
    closed this as completedon Sep 27, 2025
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